/*-
 * #%L
 * Utility classes for BoneJ1 plugins
 * %%
 * Copyright (C) 2015 - 2023 Michael Doube, BoneJ developers
 * %%
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * #L%
 */


package org.bonej.util;

import ij.Prefs;

/**
 * Multithreader utility class for convenient multithreading of ImageJ plugins
 *
 * @author Stephan Preibisch
 * @author Michael Doube
 */
public final class Multithreader {

	private Multithreader() {}

	public static Thread[] newThreads() {
		final int nthread = Prefs.getThreads();
		return new Thread[nthread];
	}

	public static void startAndJoin(final Thread[] threads) {
		for (final Thread thread : threads) {
			thread.setPriority(Thread.NORM_PRIORITY);
			thread.start();
		}

		try {
			for (final Thread thread : threads) {
				thread.join();
			}
		}
		catch (final InterruptedException ie) {
			throw new RuntimeException(ie);
		}
	}
}
